[sheppardzwc]

You can remove it by editing a template:

AdminCP -> Styles & Templates -> Your Style -> Edit Templates -> header

Find:

			<ul class="nouser">
			<vb:if condition="$show['registerbutton']">
				<li><a href="register.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase register}</a></li>
			</vb:if>

Replace with:

			<ul class="nouser">
			<vb:if condition="$show['registerbutton']">
				<!-- <li><a href="register.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase register}</a></li> -->
			</vb:if>